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US Navy - Aircraft Carrier / Amphibious
Assault Ship CVE 90 / CVHA 1 / LPH 6 - USS Thetis Bay |
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Type, class: Escort Carrier, Casablanca class Builder: Kaiser Shipbuilding Company, Vancouver, Washington, USA STATUS: Awarded: June 18, 1942 Laid down: December 22, 1943 Launched: March 16, 1944 Commissioned: April 12, 1944 Decommissioned: August 7, 1946 reclassified Assault Helicopter Aircraft Carrier - CVHA 1: July 1, 1955 Recommissioned: July 20, 1956 reclassified Landing Platform Helicopter - LPH 6 on May 28, 1959 Decommissioned: March 1, 1964 Fate: sold for scrap in December 1964 / scrapped at Peck Iron & Metal Co., Inc., Portsmouth, Virginia in 1966 Namesake: Thetis Bay, Kuiu Island, Alaska Ships Motto: ? |
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Technical Data: Length: 512 feet 3 inches (156.13 meters) overall Beam: 108 ft (33 m) Draft: 20 ft 9 in (6.32 m) Displacement: 11000 tons (full load) Speed: 19 knots (35 km/h) Range: 10240 NMI (19000 km) at 15 knots (28 km/h) Complement: 860 (ship) + 50-60 aircrew Propulsion: 4 x Babcock & Wilcox boilers (9,000 shp / 6,700 kW) 2 x Skinner Unaflow reciprocating steam engines 2 shafts / 2 propellers Aviation: flight deck + hangar deck for up to 27 aircraft |
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LPH 6 USS Thetis Bay  scrapping in progress at Peck Iron & Metal Co., Inc., Portsmouth, Virginia - 1966  USS Thetis Bay (LPH 6) - Panama Canal - 1963  USS Thetis Bay (LPH 6) - circa 1963 CVHA 1 USS Thetis Bay (assault helicopter aircraft carrier)  USS Thetis Bay (CVHA 1) - April 1958  USS Thetis Bay (CVHA 1) - April 1958  USS Thetis Bay (CVHA 1) - November 1956  USS Thetis Bay (CVHA 1) - October 1956  USS Thetis Bay (CVHA 1) - September 1956  USS Thetis Bay (CVHA 1) - San Francisco Naval Shipyard, California - August 1956  USS Thetis Bay (CVHA 1) - San Francisco Naval Shipyard, California - August 1956  USS Thetis Bay (CVHA 1) - San Francisco Naval Shipyard, California - August 1956  USS Thetis Bay (CVHA 1) - San Francisco Naval Shipyard, California - August 1956  USS Thetis Bay (CVHA 1) - San Francisco Naval Shipyard, California - August 1956  USS Thetis Bay (CVHA 1) - San Francisco Naval Shipyard, California - August 1956  USS Thetis Bay (CVHA 1) - San Francisco Naval Shipyard, California - August 1956  USS Thetis Bay (CVHA 1) - 1956  USS Thetis Bay (CVHA 1) at NAS Alameda, California - undated  USS Thetis Bay drydocked at Hunters Point Naval Shipyard, San Francisco, California while undergoing conversion from CVE 90 to CVAH 1 - November 1955 CVE 90 USS Thetis Bay (escort carrier)  USS Thetis Bay (CVE 90) - 1944  USS Thetis Bay (CVE 90) - August 1944  USS Thetis Bay (CVE 90) - August 1944  USS Thetis Bay (CVE 90) - August 1944 |
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USS Thetis Bay (CVE 90 / CVHA 1 /
LPH 6): Thetis Bay (CVE-90) was laid down under Maritime Commission contract (MC hull 1127) on 22 December 1943 at Vancouver, Wash., by the Kaiser Shipbuilding Co.; launched on 16 March 1944; sponsored by Mrs. Ricco Botta; and commissioned on 21 April 1944, Capt. Donald E. Wilcox in command. Thetis Bay got underway for San Diego where she conducted brief shakedown training. On 2 June, she moved to San Pedro to load planes and passengers for Pacific bases. The new escort carrier stood out to sea on 5 June; called at Pearl Harbor on the llth; and continued on, via Makin and Majuro, to Kwajalein. There, she embarked the Army's 50th Engineer Battalion which she offloaded at Pearl Harbor on 5 July. Two days later, the carrier got underway for Alameda with 41 aircraft that needed repairs. She arrived on 13 July and, after offloading the aircraft, proceeded to Terminal Island for a three-week yard period. Between 11 August and 13 September, the escort carrier delivered spare parts, replacement aircraft, and pesonnel to Hawaii and the Marshalls. From September 1944 through mid-April 1945, Thetis Bay made five round-trip voyages from California ports to bases in the Pacific ranging from Pearl Harbor to Finschhaven, New Guinea. On 12 June 1945, Thetis Bay arrived at Pearl Harbor from San Diego with a load of aircraft. There, the aircraft were readied for combat within 72 hours; and the ship got underway for Guam. She arrived at Apra Harbor on 25 June and was assigned to Task Group 30.8 for duty as a replenishment carrier. Thetis Bay made her first rendezvous with Task Force 38 on 12 July when she transferred 40 planes to various carriers. She returned to Guam on 22 July and remained there until 24 July to load more aircraft before joining the fast carriers again on the 31st. The ship reloaded at Guam once more and resupplied the task force from 14 August to 8 September when she returned to Apra Harbor en route to the United States. Thetis Bay arrived at Alameda on 7 September 1945 and was assigned to "Magic Carpet" duty, returning veterans from overseas bases to the United States. She served in this capacity until January 1946 when she began inactivation. The ship was placed out of commission, in reserve, at Bremerton, Wash., on 7 August 1946. In May 1955, Thetis Bay was towed to the San Francisco Naval Shipyard where she began conversion to the Navy's first assault helicopter aircraft carrier. On 1 July 1955, her designation was changed from CVE-90 to CVHA-1. With that change, she became a complement to the attack transport. Her helicopters supplemented landing craft to give the Navy and Marine Corps the flexibility of a vertical assault capability. She was recommissioned on 20 July 1956, Capt. Thomas W. South, II, in command, and completed conversion six weeks later on 1 September. The carrier arrived at her new home port, Long Beach, on 20 September. There, helicopter teams from Marine Corps Test Unit No. 1, Camp Pendleton, demonstrated landing and take-off techniques. Thetis Bay participated in amphibious training exercises off the California coast before deploying to the Far East on 10 July 1957. She returned to Long Beach on 11 December 1957 and resumed local operations. On 28 May 1959, her designation was changed to LPH-6, amphibious assault ship. In August 1959, Thetis Bay was serving with the 7th Fleet when floods on Taiwan left thousands homeless. On the 12th, she was ordered to proceed from Hong Kong to Taiwan and use her 21 large troop-carrying helicopters to aid the flood victims. By the end of the assistance operation, at noon of the 20th, the ship had delivered a total of 1,600,540 pounds of supplies to the destitute Chinese. In addition, her helicopters had lifted 850 passengers to and from various sites in the flooded area. In May 1960, Thetis Bay participated in a practice night assault landing at Camp Pendleton during which her helicopters carried 1,300 troops and 33 tons of cargo to the objective area. This was the first large-scale night landing of ground forces by carrier-based helicopters. Thetis Bay deployed to the western Pacific in the spring of 1961. After the assault ship returned to Long Beach, she was transferred to the Atlantic Fleet. She arrived at Norfolk, her new home port, in early December 1961. During the next three years, the ship operated along the Atlantic coast and in the Caribbean. The highlight of her service with the Atlantic Fleet came during the Cuban missile crisis in October 1962 when she proceeded to the quarantine area with her embarked Marine landing team and helicopter squadron ready for action. Fortunately, the resolute response of the United States to the challenge of offensive Soviet missiles in Cuba convinced the Soviet leaders that America would go to war rather than tolerate this threat to the Western Hemisphere. Rather than face a nuclear war, Russia withdrew its missiles, resolving the crisis. Another memorable event in her service occurred in September 1963 when Thetis Bay proceeded to hurricane-stricken Haiti. She anchored off Port-au-Prince and launched Marine helicopters carrying medical aid and food supplies to thousands of victims of Hurricane "Flora." Thetis Bay stood out of Norfolk on 5 January 1964 en route to Philadelphia for inactivation and arrived there the next day. She was decommissioned and struck from the Navy list on 1 March 1964. Her hulk was sold in December 1964 to Peck Iron & Metal Co., Inc., Portsmouth, Va., for scrap. Thetis Bay received one battle star for World War II service. source: US NHHC - - - - - another history: USS Thetis Bay (CVE-90) was the thirty-sixth of fifty Casablanca-class escort carriers built for the United States Navy during World War II. She was launched in March 1944, commissioned in April, and served as a transport carrier in the Pacific, as well as a replenishment carrier supporting the Allied bombardment of Tokyo and the Main Islands. Postwar, she participated in Operation Magic Carpet, before being decommissioned in August 1946, being mothballed in the Pacific Reserve Fleet. She was reactivated in July 1956, and converted to a helicopter transport carrier, serving in relief operations in Taiwan and Haiti. Ultimately, she was broken up in 1966, the last Casablanca-class hull to be scrapped. Design and description: Thetis Bay was a Casablanca-class escort carrier, the most numerous type of aircraft carrier ever built, and was designed specifically to be rapidly mass-produced using prefabricated sections, in order to replace heavy early-war losses. By the end of their production run, the time taken between laying down the hull and launching the ship had been cut down to nearly one month. Standardized with her sister ships, she was 512 ft 3 in (156.13 m) long overall, had a beam of 65 ft 2 in (19.86 m), and a draft of 20 ft 9 in (6.32 m). She displaced 8,188 long tons (8,319 t) standard and 10,902 long tons (11,077 t) with a full load. She had a 257 ft (78 m) long hangar deck and a 477 ft (145 m) long flight deck. She was powered with two Skinner Unaflow reciprocating steam engines, which drove two shafts, providing 9,000 horsepower (6,700 kW), thus enabling her to make 19 knots (35 km/h; 22 mph). The ship had a cruising range of 10,240 nautical miles (18,960 km; 11,780 mi) at a speed of 15 knots (28 km/h; 17 mph). Her compact size limited the length of the flight deck and necessitated the installment of an aircraft catapult at her bow, and there were two aircraft elevators to facilitate movement of aircraft between the flight and hangar deck: one each fore and aft. One 5 in (127 mm)/38 caliber dual-purpose gun was mounted on the stern. Anti-aircraft defense was provided by eight Bofors 40 mm (1.6 in) anti-aircraft guns in single mounts, as well as twelve Oerlikon 20 mm (0.79 in) cannons, which were mounted around the perimeter of the deck. By the end of the war, Casablanca-class carriers had been modified to carry thirty 20 mm (0.79 in) cannons, and the amount of Bofors 40 mm (1.6 in) guns had been doubled to 16, by putting them into twin mounts. These modifications were in response to increasing casualties due to kamikaze attacks. Although Casablanca-class escort carriers were designed to function with a crew of 860 and an embarked squadron of 50 to 56, the exigencies of wartime often necessitated the inflation of the crew count. Casablanca-class escort carriers were designed to carry 27 aircraft, but the hangar deck could accommodate more, which was often necessary during transport or especially training missions, due to the constant turnover of pilots and aircraft. Following her conversion into a helicopter assault carrier, she was 512 ft 3 in (156.13 m) long overall, had a beam of 65 ft 2 in (19.86 m), and a draft of 22 ft 6 in (6.86 m). She displaced 7,800 long tons (7,900 t) standard and 11,000 long tons (11,000 t) with a full load, and could make 19.3 knots (35.7 km/h; 22.2 mph) at full speed. She had a designed complement of 900 crew and 938 troops, was armed with four twin 40 mm (1.6 in) anti-aircraft guns, and carried twenty helicopters. Construction: Her construction was awarded to Kaiser Shipbuilding Company, Vancouver, Washington, under a Maritime Commission contract, on 18 June 1942. The escort carrier was laid down on 22 December 1943 under the name Thetis Bay, located within Kuiu Island, as part of a tradition which named escort carriers after bays or sounds in Alaska. The bay itself was named by the United States National Geodetic Suvery in 1928 after the United States Revenue Cutter Service cutter Thetis, which in turn was named after the sea nymph Thetis, the daughter of Nereus and the mother of Achilles in Greek mythology. She was laid down as MC hull 1127, the thirty-sixth of a series of fifty Casablanca-class escort carriers. She therefore received the classification symbol CVE-90, indicating that she was the ninetieth escort carrier to be commissioned into the United States Navy. She was launched on 16 March 1944; sponsored by Mrs. Rico Botta, the wife of Captain Botta, the Assembly and Repair Officer overseeing Naval Air Station North Island; transferred to the Navy and commissioned on 12 April 1944, with Captain Donald Edmund Wilcox in command. Notably, actress Claudette Colbert's husband, Joel Pressman, a lieutenant commander in the Medical Corps served as the first medical officer at the time of the commissioning. Service history: World War II: Upon being commissioned, Thetis Bay underwent a shakedown cruise down the West Coast to San Diego, California. Upon finishing, she was assigned to transport duty, and proceeded north towards San Pedro to take on a load of aircraft and passengers. She put out to sea on 5 June, stopped at Pearl Harbor on 11 June, and headed out, via Makin Island of the Gilberts Islands and Majuro of the Marshall Islands, to Kwajalein. There, she took on the 50th Engineer Combat Battalion of the United States Army, which she deposited back at Pearl Harbor on 5 July. On 7 July, Thetis Bay got underway for Alameda ferrying 41 aircraft that required repairs. She steamed into port on 13 July, and after unloading her cargo, headed for Terminal Island, Los Angeles for a three-week overhaul. Finishing in August, she resumed transport duties on 11 August, delivering spare parts, replacement aircraft, and military passengers from the West Coast to bases in Hawaii and the Marshalls. After completing her first transport tour on 13 September, she made five more round-trip missions, spanning September 1944 to mid-April 1945, ferrying supplies from the United States to a variety of destinations in the Pacific, ranging from Pearl Harbor to Finschhafen, New Guinea. During this period, Captain Benjamin Eugene Moore Jr. raised his flag over the ship on 21 January 1945. On 12 June, Thetis Bay steamed into Pearl Harbor carrying a load of aircraft, having departed from San Diego. There, she was assigned to become a replenishment carrier as a part of Task Group 50.8.4, the mobile replenishment group supporting the frontline Fast Carrier Task Force. Replenishment escort carriers such as Thetis Bay enabled the frontline carriers to replace battle losses, and to stay at sea for longer durations of time. She first headed to Apra Harbor in Guam of the Mariana Islands, arriving on 25 June. Then, she headed westwards, making her first rendezvous with the fast carriers on 12 July, when she transferred 40 of her replenishment aircraft. She returned to Guam on 22 July to take on more aircraft, before she departed on 24 July, making another rendezvous on 31 July. She then replenished at Guam, before heading out once again, resupplying the frontline carriers from 14 August to 8 September. As she began her replenishment mission, news broke of the Japanese surrender, and her replenishment aircraft were used to support the initial landings in the Occupation of Japan. Post-war: Upon finishing her replenishment mission, Thetis Bay returned to the United States via Guam, arriving at Alameda on 7 September. There, she joined the "Magic Carpet" fleet, which repatriated U.S. servicemen from throughout the Pacific. She cruised around the Pacific, making stops and returning U.S. servicemen back to the mainland. During one of her stops, Captain Allen Smith Jr. took over command of the vessel on 19 October. She completed her "Magic Carpet" duties, and was discharged in January 1946. Inactivation work was conducted in the Naval Inactive Ship Maintenance Facility at Bremerton, Washington. Upon the completion of that work, she was decommissioned and mothballed on 7 August 1946, joining the Tacoma group of the Pacific Reserve Fleet. In May 1955, Thetis Bay was withdrawn from the Pacific Reserve Fleet and towed to the San Francisco Naval Shipyard under project SCB 122, where she began conversion into the Navy's first assault helicopter aircraft carrier. On 1 July, she was redesignated as such, receiving the hull symbol CVHA-1. Ships of her type were expected to act as a complement to attack transports, providing them with vertical assault capabilities. She was recommissioned on 20 July 1956, with Captain Thomas Winfield South, II, in command. Her conversion was finally completed six weeks later on 1 September, with a portion of the aft section of her flight deck having been cut away. Thetis Bay then proceeded southwards towards her new home part, arriving at Long Beach on 20 September. There, she took on the helicopters of Marine Corps Test Unit No. 1, based at Camp Pendleton, who demonstrated landing and take-off techniques on this novel type of ship. She then participated in amphibious training exercises off of the California coast, evaluating her planned complementary role, before deploying to the Far East on 10 July 1957. Having completed a short tour of duty, she returned to Long Beach on 11 December, where she resumed local operations. During 1958 and 1959, she conducted a variety of operations, including vertical envelopment exercises off of Luzon, the Philippines, throughout February 1958. On 28 May 1959, she was reclassified as a landing platform helicopter amphibious assault ship, and thus, received the hull symbol LPH-6. In August 1959, severe flooding, starting on 7 August, exacerbated by Typhoon Billie, which had earlier struck in July, killed more than a thousand people in Taiwan. Thus, Thetis Bay, which was serving with the Seventh Fleet at the time, was dispatched from Hong Kong on 12 August, proceeding to Taiwan to conduct relief operations. There, she used her 21 Marine Corps Sikorsky H-34s of Marine Helicopter Transport Squadron (Light) 261 (HMR(L)-261) to ferry aid and transport stranded civilians. She completed her mission on the noon of 20 August, at which point the helicopters had delivered a total of 1,600,540 lb (725,990 kg) of aid. In addition, the helicopters had ferried 850 passengers throughout the operation. Thetis Bay, in May 1960, took part in a training night assault landing at Camp Pendleton. During the operation, her helicopters carried 1,300 troops and 30 t (30 long tons; 33 short tons) of cargo to the objective area. This practice operation represented the first large-scale night landing of ground forces by helicopters based on board a carrier. She deployed to the western Pacific for the spring of 1961, and upon completing her tour and returning to Long Beach, she was transferred to the United States Atlantic Fleet. She arrived at Norfolk, Virginia, her new home port, in early December 1961. For the next three years, Thetis Bay operated along the Atlantic coast and in the Caribbean. In October 1962, during the height of the Cuban Missile Crisis, she proceeded into the naval "quarantine" area along with her helicopter contingent and a marine landing team, standing by for potential actions. In the spring of 1963, she ferried special aircraft required for President John F. Kennedy's planned visit to West Germany to Hamburg. In September 1963, she headed to Haiti, which had been affected by Hurricane Flora. She anchored off Port-au-Prince and launched Marine helicopters carrying medical aid and food supplies. Thetis Bay left Norfolk on 5 January 1964, heading to the Naval Inactive Ship Maintenance Facility in Philadelphia, Pennsylvania, for inactivation work, arriving there on 6 January. There, she was decommissioned, once again, joining the Philadelphia group of the Atlantic Reserve Fleet. She was struck from the Naval Vessel Register on 1 March 1964, and she was sold for scrapping in December 1964 to Peck Iron & Metal Co., Inc., headquartered at Portsmouth, Virginia. She was proposed to be transferred to the Spanish Navy, but the Independence-class light aircraft carrier Cabot was sent in her place. She was ultimately broken up in 1966. Thetis Bay received one battle star for her World War II service. Her name plate is on display at Freedom Park, Omaha, Nebraska. source: wikipedia |
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